Hearing Screening & Hearing Conservation in Workplace

What is occupational noise exposure?

Noise, or unwanted sound, is one of the most pervasive occupational health problems. It is a by-product of many industrial processes. Sound consists of pressure changes in a medium (usually air), caused by vibration or turbulence. These pressure changes produce waves emanating away from the turbulent or vibrating source. Exposure to high levels of noise causes hearing loss and may cause other harmful health effects as well. The extent of damage depends primarily on the intensity of the noise and the duration of the exposure. Noise-induced hearing loss can be temporary or permanent. Temporary hearing loss results from short-term exposures to noise, with normal hearing returning after period of rest. Generally, prolonged exposure to high noise levels over a period of time gradually causes permanent damage. IncusEar hearing conservation program is designed to protect workers with significant occupational noise exposures from hearing impairment even if they are subject to such noise exposures over their entire working lifetimes. This publication summarizes the required component of IncusEar hearing conservation program for general industry. It covers audiometric testing, hearing protectors, training, and recordkeeping requirements.

 

 

What is audiometric testing?
Audiometric testing monitors an employee’s hearing over time. It also provides an opportunity for employers to educate employees about their hearing and the need to protect it. The employer must establish and maintain an audiometric testing program. The important elements of the program include baseline audiograms, annual audiograms, training, and follow up procedures. The audiometric testing program follow-up should indicate whether the employer’s hearing conservation program is preventing hearing loss.

 

What is an employer required to do following an audiogram evaluation?
The employer must fit or refit any employee showing a Standard Threshold Shift (STS) with adequate hearing protectors, show the employee how to use them, and require the employee to wear them. Employers must notify employees within 21 days after the determination that their audiometric test results show an STS. Some employees with an STS may need further testing if the professional determines that their test results are questionable or if they have an ear problem thought to be caused or aggravated by wearing hearing protectors. If the suspected medical problem is not thought to be related to wearing hearing protection, the employer must advise the employee to see a physician. If subsequent audiometric tests show that the STS identified on a previous audiogram is not persistent, employees whose exposure to noise is less than a time-weighted average (TWA) of 90 dB may stop wearing hearing protectors.

 

When is an employer required to provide hearing protectors?
Employers must provide hearing protectors to all workers exposed to 8-hour TWA noise levels of 85 dB or above. This requirement ensures that employees have access to protectors before they experience any hearing loss. Employees must wear hearing protectors:- For any period exceeding 6 months from the time they are first exposed to 8-hour TWA noise levels of 85 dB or above, until they receive their baseline audiograms. If they have incurred standard threshold shifts that demonstrate they are susceptible to noise. If they are exposed to noise over the permissible exposure limit of 90 dB over an 8-hour TWA.
Employers must provide employees with a selection of at least one variety of hearing plug and one variety of hearing muff. Employees should decide, with the help of a person trained to fit hearing protectors, which size and type protector is most suitable for the working environment. The protector selected should be comfortable to wear and offer sufficient protection to prevent hearing loss. Hearing protectors must adequately reduce the noise level for each employee’s work environment. The employer must reevaluate the suitability of the employee’s hearing protector whenever a change in working 7 conditions may make it inadequate. If workplace noise levels increase, employees must give employees more effective protectors. The protector must reduce employee exposures to at least 90 dB and to 85 dB when an STS already has occurred in the worker’s hearing. Employers must show employees how to use and care for their protectors and supervise them on the job to ensure that they continue to wear them correctly.

Tips for Holidays with Hearing Aids.

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Carry extra batteries! The batteries that you use for your hearing aids, while globally available, may not have the same guarantee of quality when traveling. A blister pack of batteries is a great way to travel with them, and Zinc Air batteries are permissible in your carry-on luggage!

You can leave your hearing aids turned on while flying, even if they have wireless capabilities. If you have any questions, make sure you contact your airline ahead of time!

Always remember to carry you hearing aid drying kit. A dry aid kit is a small jar that has a desiccant in it to pull out all of the moisture! If you don’t have one buy one from us. Moisture in hearing aids can cause dirt and debris to build up on microphones and other parts and make cleaning difficult.

Hearing aid cleaning, don’t forget your cleaning tools! Just like at home, you’ll want to properly maintain your hearing aids while on vacation or traveling away from home! Many people are more active on trips than when at home.

Hearing Aid & Accessories Supplier in Kenya

Hearing Aid & Accessories supplier in Kenya

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Hearing is the way we connect to people. IncusEar remains the most respected hearing aid & accessories supplier in Kenya. This has been enabled by stocking and dispensing leading world brands of hearing aids with cutting edge technology. We equally distribute state-of the-art audiological equipment. Our clientele include Government of Kenya, NGOs, public and private hospital, private clients and many more.

 

IncusEar also offers diagnostic hearing tests and holistic ear care within Kenya and Africa at large. We have investing and exploited the latest wireless technology in most of our hearing tests and ear care. This has enabled us to have fast and reliable services. For the first time patients are able to see their ear canal which is projected on a big screen and able to understand clearly how their respective ear canals looks like, this is facilitated by top of the range wireless otoscope which is wireless device and gives high resolution of image as well as video.

Ear Care Tips

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Cleaning your ears
Clean your ears with extra care. Wipe the outer ear with a washcloth or tissue. Do not put anything into your ear smaller than your elbow. Do not use Q-tips, bobby pins or sharp pointed objects to clean your ears. These objects may injure the ear canal or eardrum.
Earwax is the ear’s mechanism for self cleaning. If you have a build-up of wax that is blocking your hearing, see your doctor to have it removed.
If you experience itching or pain in your ears, consult with your primary care physician to determine the appropriate treatment and to determine if you need to see a specialist.
If you have pierced ears, clean your earrings and earlobes regularly with rubbing alcohol.

Illness and Medications
Reduce the risk of ear infections by treating upper respiratory (ears, nose, throat) infections promptly.
Some illnesses and medical conditions can affect your hearing. If you experience sudden hearing loss or have constant noise in your ears or head, see an ear doctor promptly.
Drainage from the ear is not normal and usually suggests infection. See your doctor as soon as possible.
Some medications can affect hearing. Take medications only as directed, and consult your doctor if you experience unusual hearing, balance problems, or ringing in the ears.

Noise
At home or work, wear hearing protection during exposure to loud levels of noise. This includes mowing the lawn, leaf blowing or using power tools. By law, a noisy work environment requires use of hearing protection. Hunting shops and some garden centers carry ear-protecting headgear.
Ear buds, such as those that come with an IPOD or MP3 player, do not protect your hearing. Also, listening to music while using power tools is dangerous to your hearing and should be avoided.
When using stereos and home theater systems, avoid high volume levels. If you think it is too loud, it probably is.
When using personal sound systems, the volume should be at a comfortable level. If someone else can hear what you are listening to, the volume is too high. Remove the headphones from time to time to give your ears a rest.
Wear earplugs at rock concerts, nightclubs and motor sporting events.
Keep automobile sound systems at sensible volumes. This can help you avoid hearing damage and allow you to hear and yield to emergency vehicles.

Safety Issues
Always wear a helmet when you bike, ski, and roller blade or in any other activity that puts you at risk for head and ear injuries.
If you scuba dive, learn and practice proper underwater techniques to avoid potentially damaging changes in pressure inside your ears.
When flying in an airplane, swallow and yawn frequently when the plane is ascending and descending to equalize pressure in your ears. If you have an upper respiratory problem such as a cold or sinus infection, take a decongestant a few hours before descending, or use a decongestant spray just prior to descent and on landing.
Earplugs with special filters can be purchased to help equalize air pressure in ears during air travel.

General Care
Have your ears checked regularly by your primary care physician. Have your hearing checked by an audiologist if you or anyone else questions whether your hearing is normal. Consult an ear physician as necessary.
When outdoors in sunny weather, remember to use a sunscreen on your ears.
If you notice unusual bumps or scaly areas on the exterior ear, consult your physician.

Know the warning signs of hearing loss:
Difficulty hearing conversations, especially in the presence of background noise.
Frequently asking others to repeat what they have said.
Misunderstanding what other people say and answering inappropriately.
Difficulty hearing on the telephone.
Requiring the television or radio volume to be louder than others in the room prefer.
Feeling that people are mumbling or have marbles in their mouth when they talk.
Difficulty hearing environmental sounds, such as birds chirping.
Agreeing, nodding your head, or smiling during conversations when you are not sure what has been said.
Withdrawing from conversations and social situations because it is too difficult to hear.
Reading lips so you can try to follow what people are saying.
Straining to hear or keep up with conversations.
Noise within your ears or head, called tinnitus, which is not caused by an external sound source.
See an ear doctor immediately if you injure your ears, experience ear pain, or notice changes in your ears or hearing.

Courtesy of The Cleveland Clinic Foundation. All rights reserved.

Why It’s Important To Wear Your Hearing Aids All Day

 

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Many people wear their hearing aids only when they go out to dinner, or for certain events or occasions. But it’s important for your brain to receive a wide variety of sounds all day long. Here’s why.

 
“I only wear my hearing aids when I go out to dinner.” A new patient told me this recently, and it’s a phrase I hear too often when I meet with hearing aid users. I try to educate my patients that it is important to wear your hearing aids all day because it gives the brain a foundation of sound in all the environments you live in. The quiet environments are not silent, and the brain will become accustomed to this sound input (which it doesn’t receive when you don’t wear your hearing aids). Having this foundation of sound prepares the brain and provides a good basis to transition into more complicated sounds.

 
Helps To Hear In Noisier Environments
Being able to hear all the words in the conversation in noisier places is what people look for most from their hearing devices. By wearing your hearing devices all day, you will be rewarded with maximum benefit when you have conversations in more complicated listening settings, whether it is in a restaurant, the car, or a party full of people.

 
Use It Or Lose It
Like most things, the brain works on a “use it or lose it” basis. So if the brain is not used to hearing – and processing – certain sounds (or frequencies of sound), the ability to hear those sounds becomes increasingly diminished over time. By not wearing your hearing aids, you are denying your brain the opportunity to process those sounds, which can lead to further deterioration of your hearing.

 
Prevent Early Onset of Dementia
Research has linked untreated hearing loss with an earlier onset of dementia. When your hearing is impaired (by not wearing your hearing aids), your brain needs to work harder and use resources that are usually devoted to memory and comprehension, simply to hear. As a result, your memory and comprehension become compromised, and by the same “use it or lose it” principle described above, these abilities become weaker and weaker over time. This can result in an earlier onset of dementia - which can be prevented by wearing your hearing aids as much as possible.

 
Make It A Morning Habit
People are creatures of habit. We are not in the habit of making our ears ready for the day, except for a nice pair of earrings, as we never actually turn our natural ears off at night. Mornings can be a quiet time, and putting your devices on often gets forgotten. Establishing a routine of putting your hearing aids on at a specific time each morning (e.g. right before you brush your teeth) will help ensure that you - and your brain-will have full access to your day-to-day environment.

Courtesy of  Ana Anzola

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Prof. GianPaolo Mazzoni

Prof. GianPaolo Mazzoni, Ph.D.

404 NW 118th Av
Coral Springs, FL 33071

Electrical Engineer – Biomedical Engineer Consultant.

Member of American Auditory Society and tele-Audiology Consultant.
Guest lecturer at Congreso de Audiologia de Colombia in Medellin 2010, and 2011.

Invited Professor of Electrophysiology and Auditory Evoked Potentials at Escuela Colombiana de Reabilitacion, Universidad del Rosario, Bogotà, Colombia.

Guest Professor of Electrophysiology and Audiology at Universidad Ibero Americana Bogota Colombia.

Invited speaker at ENT congress of Colombia 1989, 1990, 1991, 1998.

Invited speaker at Audiology Congress of Colombia 1994,1995,1996.

Guest Professor at Universidade Nacional do Brasil, Santa Maria, Rio Grande do Sul courses on Evoked Potentials.

Invited lecturer at Brazilian ENT Congress 1996.

Invited speaker at Congress of ENT Society of Mexico 2004.

Invited speaker at Asociacion de Medicos Generales del Estado de Jalisco, Mexico 2003.

Guest Professor Universidad de Manizalez, Colombia.

Invited speaker Semana de la Otologia Clinica Jose A. Rivas Bogota, Colombia.

Has given lectures on Electrophysiology and Auditory Evoked Potentials in Italy, Hungary, Checkoslovakia, Spain, Australia, Chile, Argentina, Kuwait, and the USA.

 

Help! My hearing aid got Moisture!

 

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As noted earlier in my blogs, ear canals can produce a degree of moisture which can affect hearing aid performance. Like the problem of earwax, the amount of moisture present in human ear canals can vary widely from person to person. Your activity level and climatic conditions in which hearing aids are worn are two of the more common variables affecting moisture build-up. People with high levels of physical activity who perspire easily can be more prone to moisture problems than those who lead a more sedentary life. Moreover, a moisture problem can be further aggravated by conditions of high humidity. Moisture build-up can result from either internal or external sources. Internal sources are those related to the condition of the auditory canal while the latter refers to liquids which arise from outside.

 
Moisture in hearing aids slowly corrodes the components. Then moisture makes its way onto the batteries and reduces their effectiveness. Continuing on its path of destruction, moisture travels down the hearing aid tubing where it condenses into tiny drops and eventually infiltrates the filters inside the ear hooks. During this process the hearing aid will slowly lose clarity and amplification until it finally gives up completely.

 

The Effects of Moisture.
While BTE-type hearing aids, if maintained properly, can outlast in-the-shell types, they tend to have the worst problem with moisture. Water vapors arising from the canal condense in the connecting tube. When these vapors reach a region outside the canal of slightly cooler temperature, condensation converts to small
droplets of water which appear as tiny bubbles in the tube. The accumulation of enough water droplets can
be sufficient to close the tube and shut down amplification.

Siemens Stay Dry kit is small and inexpensive pack that contains silica crystals. The silica crystals will absorb moisture from the hearing aid overnight. This kit helps in removing harmful moisture from hearing aids and there for prolonging hearing aid life.
Product Description.
Place your hearing aid inside to remove harmful moisture and to keep your hearing aid in the best working condition.

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– Protects all types of hearing aids.
– Small and portable.
– Pellets can be dried and re-used.

Zika Virus Guidance

CDC Updates Guidance for Care of Infants Born to Mothers with Possible Zika Virus Infection During Pregnancy

For Immediate Release: Friday, August 19, 2016
The Centers for Disease Control and Prevention (CDC) today issued updated interim clinical guidance for health care providers caring for infants born to mothers with possible Zika virus infection during pregnancy.

 

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The revised guidance updates recommendations for the initial evaluation and testing of infants born to mothers with laboratory evidence of possible Zika virus infection during pregnancy, based on information that has become available since release of the previous guidance in February. This guidance also includes recommendations for the management, referral to services, and follow-up of infants with laboratory evidence of congenital Zika virus infection, with or without apparent associated birth defects. The updated recommendations are these:

The updated guidance does not include dengue testing and recommends against testing cord blood specimens.
The new guidance provides information on how infant laboratory testing results should be interpreted.
The previous guidance recommended performing a cranial ultrasound unless prenatal ultrasound results from the third trimester demonstrated no abnormalities of the brain. The updated guidance recommends a cranial ultrasound even if the prenatal ultrasound was normal.
Beyond initial evaluation, the previous guidance only recommended considering an additional hearing screen at 6 months, and evaluating head circumference and developmental milestones throughout the first year of life. The updated guidance provides additional recommendations for the outpatient management of infants through the first year of life.
The updated guidance emphasizes the importance of establishing a medical home and of providing support for families affected by Zika.
Repeat eye and hearing assessments and a new recommendation for endocrine (hormonal) evaluation are new in the updated guidance.
Because the types of services needed to care for infants with congenital Zika syndrome are complex, CDC recommends coordinated care through a multidisciplinary team and established medical home. As a critical component of patient care and early identification of any delays, families should be empowered to be active participants in their child’s monitoring and care. CDC has developed a webpage on resources for affected families. HHS has also developed a planning resource for jurisdictions to assist in their preparedness and response efforts related to services and supports for children with special health care needs and will be updating this resource in the coming weeks.

Based on currently available data on congenital infections with Zika and other pathogens, this guidance aims to assist health care providers in the testing of infants with confirmed or possible congenital exposure to Zika virus and in the evaluation and management of infants with a diagnosis of confirmed or probable congenital Zika virus infection. CDC, in collaboration with the American Academy of Pediatrics (AAP), convened a meeting of experts to obtain individual input on the testing of infants with confirmed or possible congenital exposure to Zika virus and the clinical evaluation and management of infants diagnosed with confirmed or probable congenital Zika virus infection in the United States. CDC took these discussions into consideration when developing the updated interim guidance. As more information becomes available, this guidance will be updated.

Hearing Loss Prevention

INTRODUCTION

Noise is one of the most common causes of hearing loss, and one of the most common occupational illnesses. Repeated exposures to loud machinery may, over an extended period of time, present serious risks to human hearing.
• A good population has already suffered irreversible hearing damage from noise; many are exposed to hazardous noise levels each day.
• The risk and harmful effects of noise on hearing are often underestimated because the damage takes place so gradually.

How to prevent hearing loss.
Excessive noise exposure damages the delicate hair cells in the inner ear, not dissimilar to the effect of age on the ear (accelerated “wear and tear”). This damage often results in permanent, sensorineural hearing loss and tinnitus (ringing of the ears). Hazardous noise exposures can occur on the job, but also in common recreational activities. Hearing loss prevention thus requires diligence and sensitivity to situations where hearing can be put at risk:
• Beware of recreational sources of hazardous noise like firearms, firecrackers, power tools, music concerts, dance clubs, sporting events, motorcycles, motorboats, snowmobiles, powerboats, and “boom cars”.

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• The risk for hearing loss due to exposure to noise is especially high among factory and heavy industry workers, transportation workers, military personnel, construction workers, miners, farmers, firefighters, police officers, musicians, and entertainment industry professionals.
If you have to raise your voice to shout over the noise to be heard by someone within an arm’s length away, that noise could be a serious risk to your hearing. You can prevent hearing loss by removing yourself from situations where noise is excessive or by using ear plugs to protect your ears.

WARNING SIGNS
Be alert to some of these warning signs, which could suggest that you’ve been exposed to hazardous noise:
• You hear ringing or buzzing (tinnitus) in your ears after exposure to noise.
• You notice that you can hear people talking, but you have difficulty understanding them, after exposure to noise.
• You experience “fullness” in your ears after leaving a noisy area.
Remember, even though you might have experienced these symptoms temporarily in the past, your hearing might not always “recover,” leaving you with a permanent and regrettable hearing problem.
WHAT YOU CAN DO TO PROTECT YOUR HEARING
• If you work in an at-risk occupation, check with your employer to make sure that your jobsite has an effective program to adequately protect your hearing.
• Wear hearing protection, such as earplugs or earmuffs, consistently when using loud equipment at work or at home.
• Limit exposure to noisy activities at home. Monitor your listening level and how long you are listening to personal listening devices. Encourage your children to use their headphones conservatively. Consider investing in higher quality earphones that block out background noise, to help you moderate your listening levels in noisier places. Note: being able to overhear your child’s headphones is not a good way to tell if they are listening too loud! If you can hear it, their music might be too loud, but just because you can’t hear it, that doesn’t mean the levels are ok.
• Buy quieter products (compare dB ratings and ask for low-noise products).
• Keep an “eye” on your hearing – see a hearing health professional routinely for hearing testing, or if offered through your employer, ensure you know your hearing test results and track it year-to-year.
AN OUNCE OF PREVENTION
Be alert to risks of hazardous noise in your life. Since prevention of hearing loss is so critical, make sure that your family (especially children), friends, and colleagues are aware of the hazards of noise and how they can protect themselves. Remember: One-third of permanent hearing loss is preventable with proper hearing loss prevention strategies.

Brian J. Fligor, Sc.D., Children’s Hospital Boston, Harvard Medical School, Boston, MA

Daily Nation – People with hearing impairment

[img src=”http://www.nation.co.ke/image/view/-/3346214/highRes/1410764/-/maxw/600/-/14iuct9/-/People+Photo.jpg?format=xhtml” align=”aligncenter” effect=”none”]

People with hearing impairment in conversation at the start of the 2014 International Deaf Awareness Week march in Nakuru on September 22, 2014. They were participating in a campaign themed “Strengthening Human Diversity” that sought to recognise, accept and understand differences among people with various social, political and economic needs.

Kenyans who suffer from hearing impairment – about 640,000, according to the Ministry of Health – and need to get assistive devices such as hearing aids have to pay for them.

Most local health insurers, including National Hospital Insurance Fund (NHIF), do not have a cover for hearing problems.

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